:root {
--bg-color: #f0f4f8;
--panel-color: #ffffff;
--text-color: #333333;
--primary-accent: #2a9d8f;
--error-color: #e76f51;
--gold-color: #e9c46a;
--border-color: #dee2e6;
}
.relaxed-theme {
--bg-color: #fdfcf0 !important;
--panel-color: #ffffff !important;
--primary-accent: #6a994e !important;
--error-color: #bc4749 !important;
--gold-color: #f2cc8f !important;
}
.dark-theme {
--bg-color: #121212 !important;
--panel-color: #1e1e1e !important;
--text-color: #e0e0e0 !important;
--border-color: #333333 !important;
--primary-accent: #4ecdc4 !important;
}

* {box-sizing: border-box;margin: 0; padding: 0;
user-select: none; -webkit-user-select: none;
}


body {
    background: linear-gradient(-45deg, #e3f2fd, #e0f7fa, #fff3e0, #f3e5f5);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    display: flex; 
    justify-content: center; 
    align-items: center;
    height: 100vh; 
    margin: 0;
    /* Verhindert Scrollen, falls das Fenster klein ist */
    overflow: hidden; 
}

#phone-container {
    width: 95vw; 
    height: 95vh;
    max-width: 450px; 
    max-height: 850px;
    /* Transparenz hier: 0.2 statt 0.7 macht es "glasiger" */
    background: rgba(255, 255, 255, 0.2); 
    backdrop-filter: blur(15px); 
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    position: relative; 
    display: flex; 
    flex-direction: column;
    overflow: hidden; 
    box-shadow: 0 10px 40px rgba(0,0,0,0.1); 
    border-radius: 40px;
}
/* Neue Animation für den Hintergrund */
@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}


#phone-container.next-round-flash {background-color: rgba(42, 157, 143, 0.2) !important;
}
#phone-container.relaxed-theme.next-round-flash {background-color: rgba(106, 153, 78, 0.2) !important;
}
#header {
    padding: 10px;
    display: none; /* Wird per JS aktiviert */
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    width: 100%;
}

#home-btn {
    position: absolute; 
    left: 10px; 
    top: 50%; 
    transform: translateY(-50%); 
    cursor: pointer; 
    font-size: 1.5rem;
}
#menu-controls {position: absolute; top: 15px; right: 15px;display: flex; gap: 15px; font-size: 1.5rem; z-index: 20;align-items: center;
}
#menu-controls span { cursor: pointer; color: #666; }
#menu-controls .legal-text-btn {font-size: 0.85rem;text-decoration: underline;color: #666;font-weight: normal;
}
#menu-controls .legal-text-btn:hover { color: var(--primary-accent); }
#timer-display {
    font-size: 1.8rem; /* Etwas kleiner, damit er besser passt */
    font-weight: bold; 
    color: var(--text-color);
		width: 100%;       /* NEU: Der Container nimmt die volle Breite ein */
    text-align: center; /* NEU: Zentriert den Inhalt (Button) */
}
#instruction {font-size: 1.1rem; color: var(--primary-accent); font-weight: 600;text-transform: uppercase; letter-spacing: 1px;
}
#game-field {flex: 1; position: relative;border: 2px solid var(--border-color); border-radius: 16px;margin: 0 10px 40px 10px; width: calc(100% - 20px);background-color: rgba(255, 255, 255, 0.3);z-index: 1;min-height: 300px;
}
.unit-circle {position: absolute; width: 80px; height: 80px; border-radius: 50%;display: flex; justify-content: center; align-items: center;text-align: center; font-weight: bold; font-size: 1.1rem; color: #fff;cursor: pointer; transition: transform 0.1s ease, background-color 0.3s, border-color 0.3s, color 0.3s;box-shadow: 0 4px 10px rgba(0,0,0,0.15); border: 2px solid rgba(255,255,255,0.3);background-color: #264653; transform: translate(-50%, -50%);touch-action: manipulation;
}
.unit-circle:active { transform: translate(-50%, -50%) scale(0.9); }
.circle-analysis-correct {background-color: var(--primary-accent) !important;opacity: 0.7;
}
.circle-analysis-wrong {background-color: var(--error-color) !important;z-index: 10;
}.circle-analysis-target {background-color: var(--gold-color) !important;color: #333 !important;z-index: 10;
}.circle-analysis-rest {background-color: #cccccc !important;opacity: 0.3;
}
/* 1. Menü-Panel anpassen (damit es nicht den Header überlagert) */
.overlay-panel {
    position: absolute; 
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%;
    /* Wir setzen eine solide Hintergrundfarbe, aber ohne !important, 
       um Konflikte mit den JS-Toggles zu vermeiden */
    background-color: var(--panel-color); 
    /* Ein Schatten hilft, die Ebene vom Hintergrund abzuheben */
    box-shadow: 0 0 20px rgba(0,0,0,0.2);
    /* Standard-Z-Index niedriger, damit wir in der HTML mit inline-styles arbeiten können */
    z-index: 100; 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    padding: 60px 20px 40px 20px;
    text-align: center; 
    overflow-y: auto;
}

/* 2. Überschrift verkleinern, damit sie nicht mit dem Timer kollidiert */
.overlay-panel h1 { 
    color: var(--text-color); 
    font-size: 1.6rem; /* Von 2.1rem auf 1.6rem reduziert */
    margin-bottom: 5px; 
    line-height: 1.2; 
}
	.overlay-panel p { color: var(--text-color); margin-bottom: 20px; font-size: 1rem; white-space: pre-line; padding: 0 15px; line-height: 1.4; }
.help-box {text-align: left; width: 90%; max-width: 340px; color: var(--text-color); font-size: 0.95rem; line-height: 1.5; margin-bottom: 15px;background: rgba(0,0,0,0.03); padding: 15px; border-radius: 12px;
}.help-box strong { color: var(--primary-accent); }
.menu-btn {width: 80%; max-width: 280px; padding: 12px; margin: 6px 0;border: 2px solid var(--primary-accent); background: transparent; color: var(--text-color);font-size: 1.05rem; font-weight: bold; border-radius: 30px; cursor: pointer;transition: all 0.2s;
}.menu-btn:active { background-color: var(--primary-accent); color: #fff; }.menu-btn.random { border-color: #e76f51; }.menu-btn.random:active { background-color: #e76f51; color: #fff; }
.highscore-label {font-size: 0.75rem; color: #2a9d8f; margin-top: -2px; margin-bottom: 6px;text-transform: uppercase; letter-spacing: 0.5px; font-weight: bold;
}.settings-group {width: 85%; max-width: 320px; text-align: left; background: rgba(0,0,0,0.03);padding: 12px; border-radius: 12px; margin-bottom: 12px;
}.settings-group h3 { color: var(--primary-accent); font-size: 0.95rem; margin-bottom: 8px; text-transform: uppercase; }.checkbox-label { display: flex; align-items: center; color: var(--text-color); margin: 6px 0; font-size: 0.9rem; cursor: pointer; }.checkbox-label input { margin-right: 10px; width: 16px; height: 16px; }.button-row { display: flex; gap: 10px; width: 80%; max-width: 280px; margin-bottom: 20px; }.button-row .menu-btn { width: 100%; margin: 0; }

/* Kachel-Styles */
.mode-grid { 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 8px; /* Etwas weniger Abstand */
    width: 100%; 
    max-width: 350px; 
    padding: 10px; 
    margin-top: 5px; 
}
.mode-card { 
    background: var(--panel-color); 
    border: 2px solid var(--border-color); 
    border-radius: 16px; 
    padding: 8px; /* Weniger Padding */
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    justify-content: center; 
    cursor: pointer; 
    transition: all 0.2s; 
		
		box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1); /* Sanfter Grundschatten */
    transition: all 0.3s ease; /* Macht die Animation weich */
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.mode-card:hover {
    transform: translateY(-5px); /* Kachel "hebt" ab */
    box-shadow: 0 12px 20px rgba(0, 0, 0, 0.2); /* Schatten wird tiefer/weicher */
}

.mode-card .icon { font-size: 1.2rem; } /* Icon etwas kleiner */
.mode-card .title { font-weight: 700; font-size: 0.8rem; color: var(--text-color); }
.mode-card .highscore-label { font-size: 0.65rem; color: #888; margin-top: 2px; }
	
/* Sticker-Grid Layout */
.sticker-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; width: 100%; margin-top: 15px; }
.sticker-item { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 10px; background: #f8f9fa; border-radius: 12px; }
.sticker-icon { font-size: 2rem; }
.sticker-locked { filter: grayscale(100%); opacity: 0.4; }
.sticker-unlocked { filter: grayscale(0%); opacity: 1; transition: transform 0.2s; }
.sticker-unlocked:hover { transform: scale(1.1); }

/* Top 5 Vorschau auf Startseite */
.top-5-container { display: flex; justify-content: center; gap: 10px; margin-top: 15px; }
	
	/* Das Modal soll das Bild in der Mitte halten */
#sticker-detail-modal {
    justify-content: center;
    background: rgba(0,0,0,0.8) !important; /* Dunkler Hintergrund für Fokus */
}
	/* Container für die Toasts */
#toast-container {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    pointer-events: none; /* Klicks gehen durch den Container durch */
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

/* Das eigentliche PopUp */
.achievement-toast {
    background: linear-gradient(135deg, #ffffff, #f0f0f0);
    color: #333;
    padding: 15px 25px;
    border-radius: 50px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    gap: 12px;
    animation: slideDown 0.5s ease-out, fadeOut 0.5s ease-in 2.5s forwards;
    border: 2px solid #ffd700; /* Goldener Rahmen für Belohnung */
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-50px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeOut {
    to { opacity: 0; transform: translateY(-20px); }
}
	
	/* Basis-Design für den Hintergrund */
#phone-container { transition: background 0.5s ease; }

/* Die Farbpaletten */
.bg-length { background: linear-gradient(135deg, #e0f7fa, #b2ebf2) !important; }
.bg-mass   { background: linear-gradient(135deg, #e8f5e9, #c8e6c9) !important; }
.bg-area   { background: linear-gradient(135deg, #fff3e0, #ffe0b2) !important; }
.bg-volume { background: linear-gradient(135deg, #f3e5f5, #e1bee7) !important; }
.bg-liquid { background: linear-gradient(135deg, #e1f5fe, #b3e5fc) !important; }
.bg-math   { background: linear-gradient(135deg, #fce4ec, #f8bbd0) !important; }
.bg-pairs  { background: linear-gradient(135deg, #eceff1, #cfd8dc) !important; }
	
/* Farbakzente für die Kacheln */
.mode-card { border-left: 5px solid #ccc; } /* Standard-Farbe */

.card-length { border-left-color: #b2ebf2; }
.card-mass   { border-left-color: #c8e6c9; }
.card-area   { border-left-color: #ffe0b2; }
.card-volume { border-left-color: #e1bee7; }
.card-liquid { border-left-color: #b3e5fc; }
.card-math   { border-left-color: #f8bbd0; }
.card-random { border-left-color: #cfd8dc; } /* Grau/Neutral für Zufall */